Electric boat horn



FIG. 1 is a perspective view of electric boat horn showing my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof; and,

FIG. 7 is a right side elevation view thereof. 

The ornamental design for electric boat horn, as shown and described. 